Composite

Part:BBa_K3036005

Designed by: Xiao Chen,Chunxu Han   Group: iGEM19_BNU-China   (2019-10-09)
Revision as of 10:23, 12 October 2019 by Weini Xiong714 (Talk | contribs)


Arabinose-induced suicide switch

This arabinose-induced suicide switch consists of pBAD (BBa_K206000) and mazF (BBa_K302033), aiming to enable users of this microbe to terminate engineered bacteria inside their intestines with L-arabinose whenever needed. This suicide switch does no harm to human and can be used by direct in-taking of inducer. PBAD (BBa_K206000) is applied for heterologous gene expression due to its advantages, including moderately high expression levels, induction by a low-cost and non-toxic monosaccharide L-arabinose and tight regulation of transcription, which is particularly significant to expressing toxins [1]. MazF is an endoribonuclease that cleaves RNAs at ACA sites and causes the death of microbe, mediates suicide of cells without causing lysis of bacterial cells[2].

Biology and Usage

This arabinose-induced suicide switch consists of pBAD (BBa_K206000) and mazF (BBa_K302033), aiming to enable users of this microbe to terminate engineered bacteria inside their intestines with L-arabinose whenever needed. This suicide switch does no harm to human and can be used by direct in-taking of inducer. PBAD (BBa_K206000) is applied for heterologous gene expression due to its advantages, including moderately high expression levels, induction by a low-cost and non-toxic monosaccharide L-arabinose and tight regulation of transcription, which is particularly significant to expressing toxins [1]. MazF is an endoribonuclease that cleaves RNAs at ACA sites and causes the death of microbe, mediates suicide of cells without causing lysis of bacterial cells. [2]

Arabinose-induced suicide switch
Function Arabinose-induced suicide switch
Use in Prokaryotes
RFC standard RFC10 compatible
Backbone pSB1C3
Derived from Escherichia. coli DH5alpha

Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    INCOMPATIBLE WITH RFC[12]
    Illegal NheI site found at 125
  • 21
    INCOMPATIBLE WITH RFC[21]
    Illegal BamHI site found at 65
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]


[edit]
Categories
Parameters
None